import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Users from '../components/user/Users.vue'
import Welcome from '../components/Welcome.vue'
import Right from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import List from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

Vue.use(VueRouter)
// 路由规则
const router = new VueRouter({
  routes:  [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    {
       path: '/home',
       component: Home ,
       redirect:'/welcome',
       children:[
        {path:'/welcome',component:Welcome},
        {path:'/users',component:Users},
        {path:'/rights',component:Right},
        {path:'/roles',component:Roles},
        {path:'/categories',component:Cate},
        {path:'/params',component:Params},
        {path:'/goods',component:List},
        {path:'/goods/add',component:Add},
        {path:'/orders',component:Order},
        {path:'/reports',component:Report}
       
       ]
  
    },
   
    
  ]
})

// 挂载路由导航守卫
// to将要访问的路径
// from代表从哪个路径跳转过来
// next()放行  next('/login)强制跳转

router.beforeEach((to, from, next) => {
  if (to.path === '/login')  return next();
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token');
  // 没有token强制跳转登录首页
  if (!tokenStr) return next('/login');
  next();
  })

  export default router    
